Home / 215,071.20-323,073.36-207,198

Finding the Fourth Proportional to 215,071.20, 323,073.36 and 207,198

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Solution

The fourth proportional to 215,071.20, 323,073.36 and 207,198 is: 311,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,071.20 : 323,073.36 = 207,198 : x
  2. Step 2: Convert to fraction form
    215,071.20/323,073.36 = 207,198/x
  3. Step 3: Cross multiply
    215,071.20x = 323,073.36 × 207,198
  4. Step 4: Simplify right side
    215,071.20x = 66,940,154,045.28
  5. Step 5: Solve for x
    x = 66,940,154,045.28/215,071.20
  6. Step 6: Final answer
    x = 311,246.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.